From 7c5798404804036673869316c9d0db4edf7b77d4 Mon Sep 17 00:00:00 2001
From: wolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Mon, 1 Oct 2001 09:06:38 +0000
Subject: [PATCH] Simplify cross-casting constness.

git-svn-id: https://svn.dealii.org/trunk@5124 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/lac/include/lac/block_vector.h | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/deal.II/lac/include/lac/block_vector.h b/deal.II/lac/include/lac/block_vector.h
index 25bdd4bb68..643a8b2b26 100644
--- a/deal.II/lac/include/lac/block_vector.h
+++ b/deal.II/lac/include/lac/block_vector.h
@@ -273,8 +273,7 @@ namespace BlockVectorIterators
 					* converting a constant to a
 					* non-constant iterator.
 					*/
-      template <bool constness2>
-      Iterator (const Iterator<number,constness2> &c);
+      Iterator (const InverseConstnessIterator &c);
 
     private:
 				       /**
@@ -1260,10 +1259,9 @@ namespace BlockVectorIterators
 
 
   template <typename number, bool constness>
-  template <bool constness2>
   inline
   Iterator<number,constness>::
-  Iterator (const Iterator<number,constness2> &c)
+  Iterator (const InverseConstnessIterator &c)
 		  :
 		  parent (c.parent),
 		  global_index (c.global_index),
@@ -1272,8 +1270,12 @@ namespace BlockVectorIterators
 		  next_break_forward (c.next_break_forward),
 		  next_break_backward (c.next_break_backward)
   {
-    Assert (! ((constness==false) && (constness2==true)),
-	    ExcCastingAwayConstness());
+				     // if constness==false, then the
+				     // constness of the iterator we
+				     // got is true and we are trying
+				     // to cast away the
+				     // constness. disallow this
+    Assert (constness==false, ExcCastingAwayConstness());
   };
   
 
-- 
2.39.5